Senior/Lead Golang Engineers - £160k

Location: London

Working pattern: Hybrid — 3 days in the office, 2 days WFH

Build the next generation of banking technology

We’re looking for an exceptional Senior / Lead Golang Engineer to join a major global bank and play a key role in building highly scalable, resilient technology platforms supporting critical financial services.

This is a senior engineering position for someone who enjoys solving complex distributed-systems problems, setting technical direction and building production-grade software at significant scale.

You’ll work with experienced engineers, architects and technology leaders to design and deliver modern services using Go, cloud-native technologies, Kubernetes and distributed systems .

We’re also investing heavily in Generative AI , and experience building AI-enabled applications, LLM integrations or AI infrastructure would be a major advantage.

What you’ll do

• Lead the design and development of high-performance services and platforms using Golang
• Take ownership of technically complex projects from architecture through to production
• Define engineering standards, patterns and best practices across Go services
• Design highly available, scalable and resilient distributed systems
• Work closely with architects, product teams and other engineering groups to shape technical strategy
• Mentor and support other engineers, helping raise engineering standards across the team
• Build and operate cloud-native applications in a highly regulated financial environment
• Contribute to our Generative AI strategy , including services and platforms that leverage LLMs and AI capabilities
• Improve observability, reliability, performance and operational excellence across our platforms
• Participate in technical design reviews and contribute to engineering-wide initiatives

What we’re looking for

You’ll be an experienced software engineer with strong commercial experience building production systems in Go .

• Extensive professional experience with Golang
• Strong knowledge of software architecture and distributed systems
• Experience building highly scalable, resilient backend services
• Strong understanding of APIs, microservices and event-driven architectures
• Excellent knowledge of concurrency, performance and systems design
• Experience working with modern CI/CD and engineering practices
• Strong testing, observability and production engineering skillsExperience operating software in large-scale or business-critical environments
• Excellent communication skills and the ability to influence technical decisions

Highly desirable

• Kubernetes and containerised workloads
• Kafka or other distributed messaging platforms
• Generative AI / LLM applications
• RAG, vector databases or AI agent architectures
• AI platform or ML infrastructure engineering
• Python alongside Go
• Terraform / Infrastructure as Code
• Experience within financial services, banking, fintech or another highly regulated environment

This is an opportunity to work on technology where scale, reliability and engineering quality genuinely matter .

You’ll have the opportunity to:

• Work on large-scale platforms used within a global banking environment
• Influence architecture and engineering direction at senior level
• Work with Go, Kubernetes, cloud and Generative AI
• Mentor engineers and contribute to a high-performing engineering culture
• Develop your career within one of the world's largest financial institutions

Package

£160,000 base salary + pension

Hybrid working: 3 days per week in our London office, with 2 days working from home.

If you’re a senior or lead-level Go engineer who wants to work at the intersection of high-scale banking, cloud-native engineering and Generative AI , we’d love to hear from you.

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